No, AEG is not responsible for Michael Jackson's death, because Michael Jackson's doctor gave him poor care. His doctor needed to tell him no, that the drugs he wanted were not good for him. But the richest people often get the worst medical care, because people are afraid to tell him no. He was responsible for the death, not AEG.
No, in my opinion AEG is not responsible for Michael Jackson's death. While AEG was responsible for the hire of Michael Jackson's doctor they are not responsible for the doctors treatment of Michael Jackson. There is no proof or evidence showing that AEG forced the doctor to supplement Michael Jackson with narcotics.